Computer Hardware
Whenever you have a hardware resource conflict, it will more likely be an IRQ conflict rather than an i/o conflict because:

software tends to mess up IRQs
the BIOS sometimes has more of a problem controlling IRQs
software tends to correct I/O conflicts
I/O addresses cannot conflict
there are a lot more I/O addresses than IRQs.

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Computer Hardware
A customer attached an external drive to his notebook computer but the computer is not recognizing it. What should be considered?

The external drive was attached before the computer was on
The external drive is turned on
The cables are attached firmly
The external drive has been pre¬loaded with the appropriate software
All of these

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